lg@babar:~$ dmesg| grep pl2303
[17183323.252000] drivers/usb/serial/usb-serial.c: USB Serial support registered for pl2303
[17183323.252000] pl2303 2-2:1.0: pl2303 converter detected
[17183323.252000] usb 2-2: pl2303 converter now attached to ttyUSB0
[17183323.252000] usbcore: registered new driver pl2303
[17183323.252000] drivers/usb/serial/pl2303.c: Prolific PL2303 USB to serial adaptor driver
[17184026.164000] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[17184026.164000] pl2303 2-2:1.0: device disconnected
[17185298.404000] pl2303 2-2:1.0: pl2303 converter detected
[17185298.404000] usb 2-2: pl2303 converter now attached to ttyUSB0
[17186984.644000] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[17186984.644000] pl2303 2-2:1.0: device disconnected
[17187628.204000] pl2303 2-2:1.0: pl2303 converter detected
[17187628.204000] usb 2-2: pl2303 converter now attached to ttyUSB0
[17187659.248000] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[17187659.248000] pl2303 2-2:1.0: device disconnected
[17187945.024000] pl2303 2-2:1.0: pl2303 converter detected
[17187945.024000] usb 2-2: pl2303 converter now attached to ttyUSB0
[17188516.048000] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[17188516.048000] pl2303 2-2:1.0: device disconnected
[17188722.080000] pl2303 2-2:1.0: pl2303 converter detected
[17188722.080000] usb 2-2: pl2303 converter now attached to ttyUSB0
[17189447.692000] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[17189447.692000] pl2303 2-2:1.0: device disconnected
[17190389.928000] pl2303 2-2:1.0: pl2303 converter detected
[17190389.928000] usb 2-2: pl2303 converter now attached to ttyUSB0